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The new method is a combination of characteristic approximation to handle the convection part, to ensure the high stability of the method in approximating the sharp fronts and reduce the numerical diffusion, a smaller time truncation is gained at the same time, and a mixed finite elementspatial approximation to deal with the diffusion part, the sealer unknown and the adjoint vector function are approximated optimally and simultaneously.

此方法即为对方程的对流项沿流体流动的方向即特征方向进行离散,从而保证格式在流动锋线前沿逼近的高稳定性,消除了数值弥散现象,并得到了较小的时间截断误差;另一方面,对方程的扩散项采用混合元离散,可同时高精度逼近未知函数及其伴随向量函数,理论分析表明,此方法是稳定的,具有最优的L~2逼近精度。

PART 1 Electrical and Electronic Engineering Basics UNIT 1 A Electrical Networks B Three-phase Circuits UNIT 2 A The Operational Amplifier ——————————— 5 B Transistors UNIT 3 A Logical Variables and Flip-flop —————————— 8 ———————————— 3 B Binary Number System UNIT 4 A Power Semiconductor Devices —————————— 11 B Power Electronic Converters UNIT 5 A Types of DC Motors —————————————15 B Closed-loop Control of DC Drivers UNIT 6 A AC Machines ———————————————19 B Induction Motor Drive UNIT 7 A Electric Power System ————————————22 B Power System Automation PART 2 Control Theory UNIT 1 A The World of Control ————————————27 B The Transfer Function and the Laplace Transformation UNIT 2 A B —————29 Stability and the Time Response ————————— 30 ————————————— 32 Steady State————————————————— 31 UNIT 3 A The Root Locus B The Frequency Response Methods: Nyquist Diagrams ————— 33 UNIT 4 A The Frequency Response Methods: Bode Piots ————— 34 B Nonlinear Control System 37 UNIT 5 A Introduction to Modern Control Theory B UNIT 6 State Equations 40 38 A Controllability, Observability, and Stability B Optimum Control Systems UNIT 7 A Conventional and Intelligent Control B Artificial Neural Network PART 3 UNIT 1 Computer Control Technology A Computer Structure and Function B 42 43 44 Fundamentals of Computer and Networks UNIT 2 A Interfaces to External Signals and Devices B The Applications of Computers 46 UNIT 3 A PLC Overview B PACs for Industrial Control, the Future of Control 1 UNIT 4 A Fundamentals of Single-chip Microcomputer B Understanding DSP and Its Uses 49 UNIT 5 A A First Look at Embedded Systems B Embedded Systems Design PART 4 UNIT 1 Process Control A A Process Control System 50 B Fundamentals of Process Control 53 52 UNIT 2 A Sensors and Transmitters B Final Control Elements and Controllers UNIT 3 A P Controllers and PI Controllers B PID Controllers and Other Controllers UNIT 4 A Indicating Instruments B Control Panels PART 5 UNIT 1 Control Based on Network and Information A Automation Networking Application Areas B Evolution of Control System Architecture UNIT 2 A Fundamental Issues in Networked Control Systems B Stability of NCSs with Network-induced Delay UNIT 3 A Fundamentals of the Database System B Virtual Manufacturing—A Growing Trend in Automation UNIT 4 A Concepts of Computer Integrated Manufacturing B Enterprise Resources Planning and Beyond PART 6 UNIT 1 Synthetic Applications of Automatic Technology A Recent Advances and Future Trends in Electrical Machine Drivers B System Evolution in Intelligent Buildings UNIT 2 A Industrial Robot B A General Introduction to Pattern Recognition UNIT 3 A Renewable Energy B Electric Vehicles 2 UNIT 1 A

电路 电路或电网络由以某种方式连接的电阻器,电感器和电容器等元件组成。如果网络不包含能源,如电池或发电机,那么就被称作无源网络。换句话说,如果存在一个或多个能源,那么组合的结果为有源网络。在研究电网络的特性时,我们感兴趣的是确定电路中的电压和电流。因为网络由无源电路元件组成,所以必须首先定义这些元件的电特性。就电阻来说,电压-电流的关系由欧姆定律给出,欧姆定律指出:电阻两端的电压等于电阻上流过的电流乘以电阻值。在数学上表达为: u=iR (1-1A-1)式中 u=电压,伏特;i =电流,安培;R =电阻,欧姆。纯电感电压由法拉第定律定义,法拉第定律指出:电感两端的电压正比于流过电感的电流随时间的变化率。因此可得到:U=Ldi/dt 式中 di/dt =电流变化率,安培/秒; L =感应系数,享利。电容两端建立的电压正比于电容两极板上积累的电荷 q 。因为电荷的积累可表示为电荷增量 dq 的和或积分,因此得到的等式为 u=,式中电容量 C 是与电压和电荷相关的比例常数。由定义可知,电流等于电荷随时间的变化率,可表示为 i = dq/dt。因此电荷增量 dq 等于电流乘以相应的时间增量,或 dq = i dt,那么等式(1-1A-3)可写为式中 C =电容量,法拉。

PART 1 Electrical and Electronic Engineering Basics UNIT 1 A UNIT 2 A UNIT 3 A UNIT 4 A UNIT 5 A UNIT 6 A UNIT 7 A Electrical Networks ———————————— 3 B Three-phase Circuits The Operational Amplifier ——————————— 5 Logical Variables and Flip-flop —————————— 8 Power Semiconductor Devices —————————— 11 Types of DC Motors —————————————15 AC Machines ———————————————19 Electric Power System ————————————22 B Transistors B Binary Number System B Power Electronic Converters B Closed-loop Control of DC Drivers B Induction Motor Drive B Power System Automation PART 2 Control Theory UNIT 1 A B UNIT 2 A UNIT 3 A UNIT 4 A The World of Control ————————————27 Stability and the Time Response ————————— 30 The Root Locus ————————————— 32 The Transfer Function and the Laplace Transformation —————29 B Steady State————————————————— 31 B The Frequency Response Methods: Nyquist Diagrams ————— 33 The Frequency Response Methods: Bode Piots ————— 34 B Nonlinear Control System 37 UNIT 5 A Introduction to Modern Control Theory B B B PART 3 B B B State Equations Optimum Control Systems Artificial Neural Network Computer Control Technology 42 43 44 Fundamentals of Computer and Networks The Applications of Computers 46 40 38 UNIT 6 A Controllability, Observability, and Stability UNIT 7 A Conventional and Intelligent Control UNIT 1 A Computer Structure and Function UNIT 2 A Interfaces to External Signals and Devices UNIT 3 A PLC Overview PACs for Industrial Control, the Future of Control 1 UNIT 4 A Fundamentals of Single-chip Microcomputer 49 B B PART 4 B B B B PART 5 B B B B PART 6 Understanding DSP and Its Uses Embedded Systems Design Process Control 50 52 53 Fundamentals of Process Control UNIT 5 A A First Look at Embedded Systems UNIT 1 A A Process Control System UNIT 2 A Sensors and Transmitters Final Control Elements and Controllers PID Controllers and Other Controllers Control Panels Control Based on Network and Information Evolution of Control System Architecture Stability of NCSs with Network-induced Delay Virtual Manufacturing—A Growing Trend in Automation Enterprise Resources Planning and Beyond Synthetic Applications of Automatic Technology UNIT 3 A P Controllers and PI Controllers UNIT 4 A Indicating Instruments UNIT 1 A Automation Networking Application Areas UNIT 2 A Fundamental Issues in Networked Control Systems UNIT 3 A Fundamentals of the Database System UNIT 4 A Concepts of Computer Integrated Manufacturing UNIT 1 A Recent Advances and Future Trends in Electrical Machine Drivers B B B System Evolution in Intelligent Buildings A General Introduction to Pattern Recognition Electric Vehicles UNIT 2 A Industrial Robot UNIT 3 A Renewable Energy 2 UNIT 1 A

电路 电路或电网络由以某种方式连接的电阻器,电感器和电容器等元件组成。如果网络不包含能源,如电池或发电机,那么就被称作无源网络。换句话说,如果存在一个或多个能源,那么组合的结果为有源网络。在研究电网络的特性时,我们感兴趣的是确定电路中的电压和电流。因为网络由无源电路元件组成,所以必须首先定义这些元件的电特性。就电阻来说,电压-电流的关系由欧姆定律给出,欧姆定律指出:电阻两端的电压等于电阻上流过的电流乘以电阻值。在数学上表达为: u=iR (1-1A-1)式中 u=电压,伏特;i =电流,安培;R =电阻,欧姆。纯电感电压由法拉第定律定义,法拉第定律指出:电感两端的电压正比于流过电感的电流随时间的变化率。因此可得到:U=Ldi/dt 式中 di/dt =电流变化率,安培/秒; L =感应系数,享利。电容两端建立的电压正比于电容两极板上积累的电荷 q 。因为电荷的积累可表示为电荷增量 dq 的和或积分,因此得到的等式为 u=,式中电容量 C 是与电压和电荷相关的比例常数。由定义可知,电流等于电荷随时间的变化率,可表示为 i = dq/dt。因此电荷增量 dq 等于电流乘以相应的时间增量,或 dq = i dt,那么等式(1-1A-3)可写为式中 C =电容量,法拉。

Results: The BMD decreased fastest in the first year after operation, as the postoperative time prolonged, the BMD decreased markedly at the medial part of the stem especially at the calcar and under calcar part, and at the medial part of the stem and the large trochanter, the BMD at the lateral lower part of the stem decreased at a lower extent, the femur shaft part under the tip of the stem lost the lest bone.

结果:术后第一年骨丢失多,随术后时间延长,假体柄内侧尤其是股骨矩及矩下R7、R6区、假体尖内侧R5和大粗隆区R1区骨丢失最明显,假体柄外侧中、下R2、3区端次之,假体柄尖远端股骨干处R4区骨丢失相对较少。

The viewpoint about how to ensure safety production is expatiated from the aspect of safety management. Several questions that should be solved in mine safety management are discussed particularly firstly in this paper. In second part, with the principle of accident tree, some representative cases in one mine are analyzed, and more thirty laws are educed about the time, places and working procedure that easily make accidents happen, and the conclusion is confirmed by a lot of accident cases happened in our country. In third part, the Five Elements about mine safety are analyzed, they are: the basis is quality standardization, furnishment should be mechanised, management should be strictly based on laws, prevention should be ahead of time, the emphasis is group construction.

本文从安全管理的角度阐述如何保证安全生产的观点,首先详细论述了煤矿安全工作中应解决的几个认识问题;第二部分通过事故树原理分析,就典型矿井的案例揭示了煤矿容易发生事故的时间、地点、生产工序、人员等三十多条规律,总结和统计全国煤矿事故,进一步印证了这些观点的正确性;第三部分分析了煤矿安全的"五要素",即基础是质量标准化、装备是机械化、管理是依法从严,预防就是超前,重点就是班组建设。

To develop Linear Fractional Transformation model based on quasi-linear model for ground-to-air missile, state transformation method was used to establish quasi-Linear Parameter Varying model for missile longitudinal short-period dynamics by changing missile states along with an equilibrium trajectory decided by time-varying parameters. Based on the obtained quasi-LPV model, the LFT model of the missile was developed by use of MATLAB functions, and the missile dynamics were explicitly separated into certainty part and time-varying parameter part.

为了建立基于准线性化模型的地空导弹线性分式变换模型,采用状态替换方法将导弹的状态沿着一条由时变参数决定的平衡点轨迹进行变换,建立了纵向短周期动力学的准线性参数时变模型;基于所建立的准LPV模型,采用MATLAB函数建立了导弹的LFT模型,将导弹动力学明确描述为确定性部分和时变参数部分。

It includes four parts: 1 Part I, it introduces the basic knowledge of computer viruses such as computer virus definition, history and important viruses events, features, behavior phenomena, difference with computer software and hardware troubles, damage behavior and capability, classification, naming, future trend, etc; 2 Part II, it introduces the corresponding knowledge of computer systems related to computer viruses such as the composing of software and hardware of the computer system, storage media and its working mechanism, interrupt technologies,.com/.exe/.pe file formats and their working mechanism, etc; 3 Part III, it introduces computer virus mechanism and theory such as computer virus structure, work flow, working mechanism of key modules, typical technologies used to design computer viruses including the corresponding traditional technologies (interrupt filching, memory resident, etc.), the corresponding new routine technologies (self-encrypting, Mutation Engine, etc.), and the corresponding new technologies used by some prevalence computer viruses such as macro viruses, e-mail viruses, worm, hacker, Trojan, mobile phone viruses, the working mechanism analysis of some kinds of typical and prevalence computer viruses such as file-type viruses, macro viruses, e-mail viruses, worm viruses, hacker, Trojan, mobile phone viruses, the analysis of some typical and prevalence computer viruses examples including BALL viruses, WORD macro viruses, WantJob viruses, Code Red viruses, BO Trojan, etc; 4 Part IV, it introduces the defense and killing technologies of computer viruses such as the aim and criterion of computer viruses defense and killing, prevention methods and corresponding technologies, detection technologies (comparison method, character code scanning method, behavior inspecting method, analysis method, etc.), manual and automatic killing technologies, immunity technologies such as IBM digital immunity system, new anti-viruses technology trends (real-time anti-viruses technologies, 32 kernel technologies, active kernel technologies, etc.), some typical virus defense and killing softwares (Symantec AntiVirus product, PC-Cillin AntiVirus product, etc.), the defense and killing method analysis of some kinds of typical and prevalence computer viruses (file-type viruses, macro viruses, worm viruses, hacker, etc.), for example, firewall and intrusion detection technologies for anti-hacker, the defense and killing of some typical and prevalence computer viruses examples including WORD macro viruses, Code Red viruses, BO Trojan, etc.

课程内容具体包括四大部分:1)第一部分,介绍计算机病毒基本知识,包括:计算机病毒定义、病毒发展史及重大事件、病毒特点、病毒表现现象及与软硬件故障的区别、病毒破坏行为及危害性、病毒的传播途径及媒介、病毒分类、病毒的命名及计算机病毒技术发展趋势等内容;2)第二部分,介绍与计算机病毒有关的计算机系统相关知识,包括:计算机系统软硬件组成、存储介质结构及工作原理、计算机系统引导机理及流程、中断技术、。com/。exe/。pe等文件格式及工作机理等内容;3)第三部分,讲解计算机病毒机理,包括:计算机病毒的组成结构、病毒工作流程、病毒引导/触发/感染/破坏等模块的工作机理、计算机病毒所采取的编制技术(包括中断窃取/内存驻留等传统编制技术、自加密/隐形/变形机等新的常规编制技术、宏病毒/电子邮件病毒/网络蠕虫/特洛伊木马/黑客/手机病毒等一些新的流行病毒所采取的编制技术等)、一些类型的典型或流行计算机病毒的工作机理分析(包括:引导型病毒、文件型病毒、宏病毒、电子邮件病毒、蠕虫病毒、黑客、特洛伊木马、手机病毒等)、一些典型或流行的计算机病毒实例剖析(包括:小球病毒、WORD宏病毒、求职信病毒、红色代码病毒、冰河木马等)等内容;4)第四部分,讲解计算机病毒防治技术,包括:计算机病毒防治目的、病毒防治策略及规范、病毒在管理和技术上的预防措施、病毒检查技术(包括:比较法/病毒特征码扫描法/行为监测法/虚拟执行法/分析法等)、手工和自动病毒清杀技术、病毒免疫技术(包括:针对某种一次性感染病毒的基于病毒标签的免疫方法/基于自我完整性检查的计算机病毒免疫方法/IBM的数字免疫系统等)、反病毒技术的新发展(包括:实时反病毒技术/32位内核技术/主动内核技术/以毒攻毒技术等)、诺顿/趋势/金山等公司的病毒防治软件产品、一些类型的典型或流行的计算机病毒(包括:引导型病毒、文件型病毒、宏病毒、蠕虫病毒、电子邮件病毒、手机病毒、黑客、特洛伊木马)的防治措施(其中,也包括介绍面向防范黑客攻击的防火墙、入侵检测技术)、一些典型或流行的计算机病毒防治实例剖析(包括:WORD宏病毒、红色代码病毒、冰河木马v1.1/v2.2等)、多层次病毒防护体系等内容。

Calcium carbonate and soluble glass and so on were confected as alkaline antifouling agent. The Infrared Spectrometry results showed that 2275-2250 cm~(-1) diagnostic absorb wave crest in part A and 3390-3200 cm~(-1) in part B and 1730 cm~(-1) in coating film strongly proved polymers reacted just as the reacting mechanism, that means polysiloxane which offer low-surface-energy property linked Polyurethane system by —OH groups reacting with —NCO groups. Relative molar mass of part A and part B was determined by Gel Permeation Chromatography and the results were appropriate. Surface-energy was determined and results were between 33.6-47.17 mN/m and it increased when alkaline antifouling agent was put into the coating. Alkaline antifouling agent was releasing steadily when the coating film was dipped in seawater. As time gone, the pH value of seawater was increasing. Solubility parameter and results showed that there was no corrasive phenomenon between the polyethylene strand and the coating.

红外光谱分析结果表明,出现在A组分中的2275~2250cm~(-1)处的异氰酸酯特征吸收峰、B组分中的3390~3200cm~(-1)处硅羟基的特征吸收峰及出现在固化后涂膜中的1730cm~(-1)处氨基甲酸酯基团的特征吸收峰证明了涂料成膜物质交联固化符合本文的设计要求,即赋予涂膜低表面能特性的有机硅组分通过—OH基团与—NCO基团的反应已经链接到聚氨酯体系中;凝胶渗透色谱结果表明,成膜物质的A、B组分均为低分子量,符合预聚物的要求;涂膜表面能的测算结果表明,涂膜的表面能在33.6~47.17mN/m之间;加入碱式防污剂后涂膜的表面能略有升高;碱式防污剂的释放平稳,随着涂膜在海水中浸泡时间的增长,pH值有增加的趋势;用溶解度参数原则来评价涂料与网绳的涂装,结果表明,本试验研制的防污涂料对聚乙烯网绳无溶蚀作用。

The part that I'm taking on isn't exactly clear at the moment. I know I will be one of the ensemble..and possibly get a few lines here and there....The show already has it's lead roles casted and the other roles are not suitable for my age. But, I don't mind...it will be the first time that I actually get to be a part of a professional Broadway production! Everything is coming from NY!!! And the original writer is going to be the director! So, I know that this will be my chance to learn and make my way into the industry. Hopefully, next time, there will be a bigger role for me to play.I'm so thankful that God has been leading me into the right direction. I am so blessed with opportunities...and I know that my patience is finally paying off. I'm very excited to be able to train more in tap dancing because I have always wanted to improve in that area....it's going to be a lot of hard work..but, I'm so looking forward to it. I do feel very sorry for my fans who have been walking with me since the beginning of the competition. They have been so supportive of me and it made me so sad to see them cry when I made my decision. I hope that they will not be upset with me because of it. I hope that they will see that this choice will only help my future...and I hope that they will continue to support me even though my participation with the competition has come to an end. It really touched me to see that they cared so much.

我知道我可能只是其中一个群舞,或许会有点台词,因为他们早就订了女主角人选,另一个女角年纪比较大,并不合适我,但是我不在乎…这是我的第一次参于真正百老制作的演出,每一个成员都是从纽约来的,原编剧将会亲自来导演这次演出,所以我很清楚这是我最好的学习机会,也是给我提供了一条通向百老的捷径之路,下一次我一定会争取到一个很好的角色…我感激我的上帝指引我一个正确的方向,我非常感激有这麼好的一个机会,我等了那麼久,总算有了一个好的起步…我特别兴奋的是,我这下子总算有机会好好学"踢躂舞"了,这是我最弱的一种舞,我一直希望能把它学好,尽管我知道会很辛苦,但是我已经作好了思想准备…还有对那些从一开始就支持我的那些粉丝,我感到非常抱歉,尤其是当我在台上说出我离去的决心时,看到她们一个个都哭得那麼伤心,我也很难过,我希望她们能明白,这个决定是绝对对我前途有利的,我希望就算是我不再比赛,她们仍然会支持我,一直以来,她们对我的关心和鼓励最让我心动的…。

2 Aids to Interpretation In these Terms and Conditions and in the Contract Details, unless the contrary intention appears; words denoting the singular include the plural and vice versa; a reference to any one of an individual, corporation, partnership, joint venture, association, authority, trust or government includes any other of them; the headings are for convenience only and do not affect interpretation; a reference to any instrument (such as a deed, agreement or document) is to that instrument (or, if required by the context, to a part of it) as amended, notated, substituted or supplemented at any time and from time to time; a reference to a Party is a reference to a party to the Agreement and includes that Party's executors, administrators, successors and permitted assigns; a reference to a clause or attachment is to a clause (including sub-clause, paragraph, sub-paragraph or further subdivision of a clause) or attachment of or to these Terms and Conditions; a reference to any legislation or legislative provision includes any statutory modification or re-enactment of, or substitution for, and any subordinate legislation under, that legislation or legislative provision; where an expression is defined, another part of speech or grammatical form of that expression has a corresponding meaning; a reference to "US$" or "US Dollars" is a reference to the currency of the United States of America.

1.2艾滋病的解释在这些条款和条件,并在合同中的细节,除非相反的意图似乎;的话指的奇异包括复数,反之亦然;提及的任何一个个人,公司,合伙,合营,协会,主管部门或政府的信任,包括任何其他人;标题只是为了方便起见,并且不影响解释;一个参考的任何文书,是该文书的(或者,如果所要求的背景下,一个它的一部分)修订, notated ,取代或补充,在任何时间,从不时;一个参考一党是一个参考,以协议的当事方和包括党的执行者,管理者,继承人和允许的受让人;一个参考的条款或附件,是一条第(包括子第,段,分段或进一步细分的一个条款),或扣押,或这些条款和条件;一提到任何立法或立法条文包括任何法定修改或重新制定的,或替代,以及任何附属法例下,即立法或立法条文;在1表达的定义是,另一部分言论或语法形式的表达有一个相应的意义;中提到&美元&或&美元&是一个参考的货币美利坚合众国。

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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。

A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.

付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。